Magnetic separator.



W. B. MORE. MAGNETIC SEPARATOR. APPLIGATION rILBD AUG. 31, 1906.

960,668.v Patented June 7,1910.

numstoz sTATEs PATENT OFFICE.

WALTER'B. Moolen, or SEATTLE, wAsmNeToN.

. To all it may concern:

Belit known that I, WALTER B. Moons, a

I citizen'of the United States of America, and

` led'August 31,1906, and bearing Serial No.

ticles or'magnetite, for the a resident of the city of Seattle', ii the county of King and State of lVashiifgton, have invented certain new and useful Improvements in Magnetic Separators,` of whi/ch the followin is a. specification.- l

Iy invention has for its rimary object to provide a simplified ande cient apparatus for treating finely divided materials such as sand or "gangue containing magnetic parurpose of separating the magnetic from tlie non-magnetic -particles,l and is adapted for carrying out the process forming 'the subject of another applicatior for' patent executed by me on even dateherewith, the same havin been v'ith the above and other objects referred to hereinafter in View the invention resides in the construction, combination and arrangement ofvparts as set forth in this speciication andV deiined inthe appended claims. In the accompanying drawing, wherein like reference characters 'designate' corre- `lSponding Aparts throughout, there is illus".

trated one form of embodiment of'the invention capable .of carrying the same into practical operatioi1.`

With reference 'to the drawing Figure l is a. vertical transverse-section of the apparatus,

and Fig. 2 a side elevation of the same 4.9- in the form of a'waterproof casing'2 in viewed fromA the right of Fig. 1, portions of some of the parts being broken away.

In carrying out my invention,-I provide a magnetic separating means conveniently consisting of an electro-magnet l, and a shield ffwhich the magnet is inclosed.

The magnet l, as shown, is of the multipolar form-and secured to a tubular shaft 3l which fits rotatably in suitable hubs secured Vltoshield 2 and is supported in a frame 4 f or rotation. The said s iaft and shield having secured thereto drive pulleys 5 and 5 ref spectively, to which power is applied to rotate the magnet and shield independently of each other. i

The coils of magnet 1 are electrically connected with.. suitable collecting rings 3', which are secured to shaft?, and contact' with respective brushes 4. c0mi`ected with a. suitable electrical energizer.

The .ninaterials to be. treated are passed.

Specification of Letters Patent.

Application filed August 31, 1906. Serial No. 332,870.

MAGNETIC SEPARATOR.

Patented J une 7, 191i).

into the inagneticcld of magnet l, preferably 1n a wet state. This 1s conveniently acf complishcd by feeding the materials mixed with water into a conduit G,which discharges upwardly into achainber, as T, having up'- wardly flaring walls embracing the lower portion of shield 2. In the chamber 7- is a' passageway or trough 8, which communiflow into trough 8 andV thence discharged through .the opening 8.

In conjunction with the magnetic sep-v arating means I iovide means for 'magnetically transferring the magnetic particles or magnetite extracted thereby- Afrom the mass of 'materials the same conveniently consisting of permeable members as 9, which `are disposed in the magnetic field of magnet 1, preferably at its upwardly movin side, close to but not in contact with the shield 2.

In the construction shown -the members 9 are in the form of rectangular bars which are arranged diadonally relatively to the'periphery of shield 2 and lextend longitudinally thereof.

Reference numerals 12 -12 and 12 indicate suitable supports which extend outwardly, each from its respective member 9,

and 10 designates jet tubes connected with a delivery pipe 11 and suitably arranged to direct water for discharge toward respective members 9.

. 'The support 12 is 'provided with an extension 14 which is inclined upwardly in an outward direction, thereby forming a recess 14 at the base of which the support is provided with an o eninf 15 conniiunicatinrp i.

with a valve, as 1G.

The members 9 being in the magnetic field of magnet l, lilies of force passing through said field will be concentrated therein and soenergize said members that they will have stronger attraction for the magnetic particles or magnetite than will the magnet.

Consequently as fast as the magnet-ic materials are carried by shield 2' into the field of force of the lower men'iber 9 they will be caused to leave the shield and cling to said member. lf, however, shield 2 should be 5 overloaded with magnetic materials, a part thereof will be conveyed beyond the lower member and removed from said shield by the succeeding members t).

The magnetic particles or magnetite clinging to the members 9 are subjected to a reversal of magnetic polarity,`by reason of the movement of magnet l, and are. thereby caused to travel end over cnd across said members and their' respectivev supports.

l5 During the end over end movements of the particles such non-magnetic matter as ma`vv be carried therewith in magnetic entanglements will be freed and pass with the water discharging from the jet tubes "l0 to the rccess 14', while the magnetic particles falling from the supports l2 will -be caught on extension 14 and travel thereacross, for dcposit iu a trough 17, in company with those passing from support 12".' Thus the pure magnetic concentrate -is deposited in one place, and the non-magnetic materials which are carried therewith from shield 2 in another place from whence they may be removed, by opening valve 16, for subsequent treatment-to recover such values as may be combined therewith.

Ilaving thus described my invention what I claim as new, and desire to secure by Letters Patent et' the United States of America,

isz--- l l. In a magnetic separator, the combination of a snpportto which materials are fed,

said support having an extension Vwhich is inclined upwardly 1n an outward direction,

-IO there being an opening at the base of said extension, a valve for closing said opening, and a magnet movable for presenting poles of opposite polarity to cause the magnetic particles to travel on said support.

i5 2. An apparatus for separating magnetic from non-magnetic particles comprising a rotatable magnet, means for directing the materials into the magnetic field of said magnet beneath the same, means movable about said magnet for coireying the .particles attracted thereby, a plurality of permeable members disposed 1n said field one above the other adjacent said4 conveying means, supports extending from said members, means for directing water to flow upon said supports, the upper of said supports discharging onto the lowerone, for the purpose specified.

3. In a magnetic separator the combination of a magnet supported for movement, a movable shield extending 'about said magnet for conveying the magnetic particles attracted by said magnet, a chamber embracingl the -lower portion of said shield, the walls of said chamber being inclined outwardly in an upward direction, means for directing a mixture of water and the materials to be separated for discharge upwardly into said chamber, an upwardly and outwardly inclined artition in said chamber.extending in proximity to the under side of said shield, said chamber being provided with an outlet at the-outer side of said partition, and a member in the magnetic field of said magnet for attracting the particles conveyed on said shield.

44.`An apparatus for separating magnetic from non-magnetic particles coi'nprising a chamber, a rotatable magnet, means for directing materials to be separated for dis.- charge into said chamber, means movable about said magnet and havingits lower portion arranged in said chamber for conveying the particles attracted by permeable member 'arranged above said chamber for attracting the magnetic particles conveyed on said shield, a downwardly inclined support extending outwardly from said member having an upwardly inclined extension at its outer end portion thereby forming a recess, there being an opening at the base of said extension normally`closed by a valve, other permeable membersarranged above said first named permeable member, and supports leading from said last named 'permeable members arranged to discharge onto said first named support.

A magnetic separator comprising a rotating magnet, means for directing material into the magnetic field thereof, a permeable member in said field at the upwardly moving side of said magnet, conveying means extending about said magnet for transporting materials attracted by said magnet into the field of force of said member, aiida support extending outwardly from said member onwhich the materials attracted by said member are impelled in an outward direction by said magnet.

Signed at Seattle, lillashiiigton this 23 day of August 1906.

` WAL'llllt B. MOORE.

said magnet, a 

